Closure



Jan. 24,. 1933. J. H. MosEl. 1,895,169

CLOSURE 4Filed M aroh 14, 1930 crete miXers.

Patented Jan. 24, 1933 UNITED rs'lnafrlejs,

PATENT' OFFICE 0F CQLUMBUS, 011104,. A, CORPORATION' OF'QHIO cLosURE YThis invention relates to closures, and while itY is of generalapplication, it relates more particularly to closures for rotatablereceptacles, such as thoseof portable con- With portable concreteAmixing machines which have been developed to mix the concrete while thesame', is being transported from the loading yard' to ther constructionwork, closures have been provided' which are hinged to the receptacle,and other closures have been provided which are removed bod-` ily;Inasmuch asthe loading hoppers: from which the receptacles or drums ofthese machi-nes are filled at theloa-ding yard general,-

ly have very little clearance between the` re,- ceptacle and the bottomof the hopper, i't has. been necessary heretofore to open the closurebefore the receptacle is moved under'theload- 5320 inghopper. This`procedure required eitherv the services. of a helper in@ addition to thedriver ofthe truck, or necessitated that the driver dismount, openv thereceptacle, returny tothe driving compartment, and then move thereceptacle under the hopper, either eX'- pecl'ient resulting in loss oflabor and time. It is, therefore, an object of the present invention toprovide a lclosure for av receptacle ofthe character described', whichis op-` erable with a minimum clearance beyond the receptacle wall. A k

Another object of the invention is4 to provide a simple and convenientmeans for operating the closure and securing the same in position. Y

A further object of the invention is to provid'e a device of thecharacter described which will be, simple, efficient, and economical in4U construction and operation, substantially fool-proofnot likely to getout of order, and otherwise well. adapted for the purposes set forth.

Other objects and features of novelty will beapparent as the followingdescription proceeds, reference beinghad to the accompanying drawing, inwhich:

Eig; 1 isa plan view of a portion of a re.-

ce-ptacle,` ofthe character described showing thefclosu're and operatingmea-ns..v therefor aC- A ,l .iosErH H. MosEn/on LAKEWOOD, onrdnssrenoaTo THE JAEGER MACHINE COMPANY, o

cording to, the present invention as applied thereto; and .l f

o Fig.- 2 is van elevation of the structure shown in Fig; 1. A i y:Referring more, particularly to the drawing, in connection with thevfollowing description of the preferred embodimentof the invention,there has been illustrated afreceptacle 9 havinga cylindrical side wall11 andk acircular-end-wall 10.` ,This shape isnotessential, and thereceptacleV may beused for any desired purpose,I but it is particularlysuitable for the-rotatable receptacle of a, concrete mixer which isadapted to mix the con-f crete while in transit. l

An opening 12 is formed iny the wallrll, anda closure member suchasadoor- 13V is adaptedto close the opening. Sealing means 14:, such asfa gasket or other packing is interposed between the opening and thedoorv so as; tolseal the samewhen the door isclosed'. The contourA ofthedoor 13 is the same as the wall 11V and is adapted, in moving fromclosed position to open position, to move along a path close to. andsubstantially parallel to the surface, of the wallll.

For. guiding the door in its movement,

.fm l

guide tracks 15,v are provided adjacent the i edgesy off the opening,whichv arev substantially parallel to the curvature` of the wall 11. Thetracks 15 are secured to the wall 11 byv bolts 16, andare held inspacedA relation therefrom 15, leaf springs 21 are provided, which" aresecured intermediate their ends, as by clips 22 and bolts 23 tothe outersurface of Vthe door 13. The outer end of thev main leaf of each spring21 is provided with a rolled For supportingthedoor 13'upon the'track end24, receiving a lpin 25 on` which is journalled a roller 26 having aflange` 2fZ',vthe c rollers 26 being adapted to engage theouter surfaceofthe guide tracksl., andthe anges just describedwill tend to raise thedoor 13u underlie the track 15 are provided at the endsl of the door andangle clips 29 are secured to the outer surface of the door in suoliposition that the upstanding flanges 30 thereof engageY l scope' of theinventio'nis not to be limited to the inner edges of theV guide tracks15.v Y It will beobvious that the door mounting lto follow the outlineof the track 15 as it moves to open thereof. v

A For securing the door in a pair of strap members 31 aresecured to thewall l11 adjacent one edge of the door opening, each of these membershaving an upstanding U-shaped portion 32.` A pair of angle clips 33 aresecured to the surface of the door 13 and substantially in alignmentwith the portions 32 and the members 31.v The members 33 :each have anupstanding triangular flange 34 which supports a rod 35. Pivoted on'therod 35 are transverse bars 36 having hooks 37 at lcorresponding endsthereof and adapted' to vengageethe Vabutments formed by the members'32.- A spacer rod 38 is provided for the bars 36.

position on the portion 2Q Means are' provided for engaging the otherends V ofthe bar36 tourge the door 13 inwardly about the abutments 32,and for this purpose a toggle mechanism is mounted on v thewvall 13 attheother side of the'opening.

A strap vmember 39 is secured to the walll11 and provided withupstandingears i40 re-r ceiving a rod 41.A The ends of the rod 41 carrylevers 42, the opposite ends of which are connected by a handle 43.Adjacent the rod 41, a' rod 44 passes through the links 42, intermediatetheir ends, and projects laterally therebeyond at eachrside'. The innerends of links 45 in which are interposed turn-buckles 46, are secured onthe outer ends of the rod 44.

A1i'od-47 is-carriedby the other ends of the links 4 5 and is. adaptedto engage the hooks 48 at theends of the bars 3,6. Y

rThe togglevmechanism thus described is shown in the drawing in itsclosed position, and it will be obvious that moving thehandle .43`away'from the wall 11 will `raise the rod 44, thus moving the rod 47`clear of the hooks 48. The rod 33 may then be moved away Vfrom thedoor, permitting the hooked ends 37 to move from under the abutnients32, so that the door may be moved along the track to Y v the openposition. The lgreater spacing of the portion 20, together1 with the camaction of thecam: 19, will cause theV door to ride Yclear of the togglemechanism, which may lie v,flat against the wall 11.

From Vthe foregoing description, it will closed position,

means, according to the present invention, maybe readily operated withaV vminimum clearance outside the surface 'of ,the wall and that thenovel mechanism is otherwise well any of the details disclosed, otherthan as e necessitated by the development of the prior art, but insteadincludes such embodiments of the broad idea as fall within the scope ofthe appended claims, it being obviousnthat va# rious changes andmodifications'may be resorted to without departing from the spirit ofthe invention. t f Having thus described my inventioinwhat I claim is:

1. In a device of the in combination with a rotatable receptacle havinga wall with an opening therein, a closure member adapted' to close'saidopen ing, a toggle device for urging said closure character described, Y

member toward closed position, and means effective upon release of saidtoggledevicefor guiding'said' closure member along a path acent to saidreceptacle wall and substantiallyparallel thereto from closedposition toan open position and for urging said closure member to a position* clearof .said-'toggle' device.

' 2. InAV a device of the' character described,`

in combination with a wallhaving an openiiig, a closure member forsaidfopening, a

guide trackcarried byA said wall, leaf springs secured to said closuremember, and rollers carried by said `springs and engaging said` guidetrack. i .c

3. In a device of the character described, in'combina-tion with a wallhaving vanopen- -ioo ing and an abutment adjacent said opening, a

closuremember adapted to close said opening, a bar pivoted'intermediateits endsA to said' clcsuremember and havingone end eX- tending fromsaid' closure membery and engaging said abutment,andtogglemeans car-Vguiding said closure member to and from an open position clear of saidopening toa posi- `tion above said opening` means for-forcing vsaidclosure member into position closing said opening, and resilient meansformounting said closure member for cooperation with said' guiding meansand constantly urging..v

said closure member away from said wall.

'5. In a mixing machine adapted to' mix materials vwhilef'in transit, arotatablefdrum for containing the material being mixed and having anopening therein, a door for said opening, guide tracks adjacent oppositesides of said opening and substantially parallel to each other andrelatively close to the Wall of said drum and substantially parallelthereto,

rollers enoaging said tracks, spring mountings for supporting said dooron said rollers, and lever means for forcing said door to close saidopening against the action of said' spring mountings. a

6. In a device of the character described, in combination With a Wallhaving an opening and an abutment adjacent said opening, a door for saidopening, guide tracks adjacentopposite sides of said opening andsubstantially parallel to each other and relatively close to said Wall,springs secured to said door and supporting rollers adapted to engagesaid tracks, a bar pivoted intermediate,

its endsl to said-door and having one end extending therefrom andengaging said abutment, and toggle means carried by said wall v andcooperating With the other end of saidl bar for urging said door intoclosed position. 7. In a device of the character described, incombination with a Wall having an opening therein and an abutmentadjacent said i opening, a door adapted to close saidopening. guidetracks adjacent opposite sides of said opening Y and substantiallyparallel to each other 'and extending along the Wall laterally beyondthe opening, said guide tracks being spaced outwardly of said Wall withthe laterally extended portions thereof spaced a greater distance fromthe Wall than the portions thereof that are closely adjacent to saidopening, rollers resiliently carried by said' i door and engaging saidtracks, abar pivoted intermediate its ends to said door and having oneend engaging said abutment, and toggle meanscarried by said Wall andarranged intermediate the laterally extending portions of said tracksfor engaging with the other end of said bar and urging said closuremember into closed position.

In testimony whereof, I hereunto aix my signature.

JOSEPH H. MOSEL.

